(Diane Isabel/iStock/Getty Images) The world's population is shifting. We're living longer than ever before, with elderly ...

Your DNA is constantly changing. And if it weren’t for genetic mutations, evolution wouldn’t exist. So, what would life be ...

For a long time, evolutionary biologists have thought that the genetic mutations that drive the evolution of genes and proteins are largely neutral: they're neither good nor bad, but just ordinary ...

In the 1960s, Kimura’s neutral theory revolutionized molecular biology by arguing most DNA changes are random, not adaptive. A new study finds beneficial mutations are far more common than Kimura’s ...

Some of nature's mysteries have kept scientists busy for decades—for example, the processes that drive evolution. The question of whether certain differences between and within species are caused by ...

Recent research challenges the idea that natural selection favored larger human brains. Scientists analyzed fossil skulls and ...

The second science -- Simple selection -- The genetic and ecological context of selection -- History, chance, and necessity -- The rate of genetic deterioration -- The rate of environmental ...

A plant geneticist and computational biologist teamed up to decipher the unpredictability of natural and engineered mutations in tomatoes. They discovered some combinations of mutations behave as ...

For tens of thousands of years, evolution shaped tomatoes through natural mutations. Then, humans came along. For centuries, we've bred and cherry-picked tomatoes with our preferred traits. Today, ...